| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2021 | 01 Aug 2021 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Apr 2021 | 01 Apr 2021 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Mar 2021 | 05 Mar 2021 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Aug 2020 | 01 Aug 2020 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2020 | 01 Aug 2019 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2020 | 01 Apr 2020 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Aug 2019 | 03 Aug 2019 | 000-21433 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2019 | 01 Apr 2019 | 000-21433 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 01 Apr 2019 | 01 Apr 2019 | 000-21433 |